What I really like about OS X is that almost all text controls in system use old Unix shortcuts for moving around text (same as Emacs is using), so you might just learn them:
⌃a, ⌃e, ⌘<, ⌘> for line/document begin/end respectively. There are more of them, you can go through Emacs tutorial to learn them.
Reopen closed tabs is, afaik, Command-z
That only works immediately after I close the tab. If I close one tab, close another tab, navigate to some other site, browse it for a while, and then decide to reopen that two closed tabs, then I can't do that.
The lack of a right mouse button is my biggest Mac pet peeve (yes, I know you can gesture on, but I find I often screw up the gesture).
How do you screw up tapping with two fingers?
fn+arrow keys do home/end/page up/page down.
I know about that, but those arrow keys are so tiny. It becomes even more awkward if I want to select text (e.g. shift-fn-left).
My only complaints are the keyboard (as a programmer I really miss home/end/page up/page down), and that I can't reopen closed tabs in Safari.